– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 am Wed 02 Sep Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 am Wed 02 Sep Local Time
Updates in:
Update imminent hr min s
Issued: 4 am Wed 02 Sep Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryLight rain (total 10mm), mostly falling on Wed night. Very mild (max 16°C on Wed afternoon, min 9°C on Thu night). Wind will be generally light. | Days 4–6 Weather SummaryLight rain (total 3mm), mostly falling on Sat morning. Warm (max 20°C on Sun afternoon, min 11°C on Sat night). Wind will be generally light. | |||||||||||||||||
Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | | | |  | |  | | | |  |  |  | | |  | |
rain shwrs | light rain | rain shwrs | rain shwrs | rain shwrs | rain shwrs | cloudy | light rain | light rain | light rain | light rain | rain shwrs | clear | some clouds | clear | some clouds | clear | some clouds | |
Cloud base (m) | 1850 | 2000 | 1650 | 1850 | 1500 | 2300 | 2300 | 800 | 2500 | 750 | 650 | 2450 | 2650 | 2750 | 6850 | 2650 | ||
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 0.5 | 0.8 | 5 | 0.1 | 0.6 | 0.1 | — | 1.9 | 0.5 | 1.5 | 1 | 0.1 | — | — | — | — | — | — |
max °C | 14 | 16 | 12 | 11 | 14 | 12 | 13 | 14 | 12 | 13 | 12 | 12 | 18 | 20 | 15 | 18 | 20 | 15 |
min °C | 13 | 16 | 10 | 10 | 12 | 9 | 11 | 14 | 11 | 12 | 12 | 11 | 13 | 20 | 13 | 14 | 20 | 13 |
chill °C | 12 | 15 | 9 | 10 | 12 | 9 | 11 | 14 | 11 | 12 | 12 | 11 | 13 | 20 | 13 | 14 | 20 | 13 |
Freezing level m | 2550 | 2650 | 2250 | 2150 | 2350 | 2400 | 2300 | 2500 | 2500 | 2350 | 2450 | 2600 | 2700 | 2900 | 2950 | 3050 | 3250 | 3350 |
 | 6:24 | — | — | 6:26 | — | — | 6:28 | — | — | 6:30 | — | — | 6:31 | — | — | 6:31 | — | — |
 | — | 7:47 | — | — | 7:45 | — | — | 7:44 | — | — | 7:42 | — | — | 7:39 | — | — | 7:37 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Light rain (total 10mm), mostly falling on Wed night. Very mild (max 16°C on Wed afternoon, min 9°C on Thu night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Light rain (total 3mm), mostly falling on Sat morning. Warm (max 20°C on Sun afternoon, min 11°C on Sat night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.
| Weather Station | Temp. | Weather | Wind | Gusts | Cloud / Visibility |
|---|---|---|---|---|---|
 | |||||
Bellingham Airport | | ||||
Abbotsford Airport |  |
* NOTE: not all weather observatories update at the same frequency which is the reason why some locations may show data from stations that are further away than known closer ones.